'88GT
When the car quit running, I checked fuel pressure and saw it was close to zero.

We dropped the tank (ugh!) and pulled the pump/sensor assembly, and found that one of the squeeze plastic clamps had worked its way off of that thick, soft rubber, vibration-isolating hose. The pump itself is fine. By the way, the fuel level sender assembly is new - adapted from another car - and it works properly.

Checking online, it appears that on some cars there's a pulsator between the pump and the metal fuel line, designed to reduce fuel pressure pulses. NAPA says the pulsator is an obsolete part that is no longer stocked - but I found them for sale online.

QUESTIONS
Is there a reason to find a pulsator, or should I just use that same hose?
Should I re-use the plastic clamps (they look ok), or find stainless?
Any other hints to help me avoid ever removing the tank again?

Dorman PN 55160. Any Auto Parts stores should have them.

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Calgary time/temp

3.4L Supercharged 87 GT Click me
Super Duty 4 Indy #163 Click me

For what it is worth, mine was removed years ago when I had to replace the pump and I have had no problems since.

When I replaced my fuel pump with a Bosch rotary pump I tossed the pulsator with no adverse affect whatsoever. I guess if you don't have a rotary fuel pump it may be necessary.

If you use the hose, it must be submersible hose. If your hose was "big and soft", that means that it wasn't submersible.
But yes, the hose is all you need. Napa has submersible hose.

the pulsator was used when gyrator pumps were common. With todays turbine pumps there are no pulses to add to the noise and therefore they are not needed.

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" THE BLACK PARALYZER" -87GT 3800SC Series III engine, custom ZZP /Frozen Boost Intercooler setup, 3.4" Pulley, Powerlog manifold, Northstar TB, LS1 MAF, 3" Flotech Afterburner Exhaust, Autolite 104's, MSD wires, Custom CAI, 4T65eHD w. custom axles, HP Tuners VCM Suite.
"THE COLUSSUS"
87GT - ALL OUT 3.4L Turbocharged engine, Garrett Hybrid Turbo, MSD ign., modified TH125H
" ON THE LOOSE WITHOUT THE JUICE "

quote Originally posted by Dennis LaGrua: the pulsator was used when gyrator pumps were common. With todays turbine pumps there are no pulses to add to the noise and therefore they are not needed.

Are we to assume then that all current replacement Fiero fuel pumps (both 2.5 and 2.8) are turbine pumps?

If not, when looking at them what physically distinguishes turbine from gyrator pumps?

OK - kept the fat hose and used new stainless clamps to hold it on the fuel line and the pump output. Fingers crossed!

What a PITA to get the tank out and then back into the car! I really hope this fix works.

good luck, I hope it works, I have dropped the tank 3 times on my 2m4 and once on my GT, I know what you mean